Aspartic acid
CAS 56-84-8
EC 200-291-6
Formula C4H7NO4
MW 133.1 g/mol
Amino Acids & Peptides Personal Care & CosmeticsPharmaceuticals & HealthcareFood & Nutrition pH Regulation & BufferingHumectant & MoisturizingChelation & Sequestration
Description
Aspartic acid (CAS 56-84-8) is a naturally occurring amino acid supplied as a white crystalline powder under abbreviations ASP, Asp, H-ASP-OH, and H-L-ASP-OH, with FEMA designation 3656. It carries no E-number classification and is identified under EC 200-291-6 with molecular formula C4H7NO4.
In personal care formulations, aspartic acid functions as a chelator that binds metal ions to stabilize emulsions and extend shelf life, and as a humectant that draws moisture into the stratum corneum to condition both skin and hair. In pharmaceutical and food applications, it acts as a pH buffer, maintaining target acidity ranges through its dual carboxyl and amine groups.
Aspartic acid is available in food-grade (FCC) and pharmaceutical-grade (Ph.Eur.) specifications, supporting procurement across regulated industries. The substance is fully REACH-registered and supplied under HS code 29224995. Standard packaging formats include multi-layer bags and fiber drums suited to bulk B2B orders.
In personal care formulations, aspartic acid functions as a chelator that binds metal ions to stabilize emulsions and extend shelf life, and as a humectant that draws moisture into the stratum corneum to condition both skin and hair. In pharmaceutical and food applications, it acts as a pH buffer, maintaining target acidity ranges through its dual carboxyl and amine groups.
Aspartic acid is available in food-grade (FCC) and pharmaceutical-grade (Ph.Eur.) specifications, supporting procurement across regulated industries. The substance is fully REACH-registered and supplied under HS code 29224995. Standard packaging formats include multi-layer bags and fiber drums suited to bulk B2B orders.
Physical Properties
| Melting Point | 270-271 °C |
| Boiling Point | 245.59°C (rough estimate) |
| Density | 1.661 g/cm³ @ Temp: 12.5 °C |
| Appearance | White crystalline powder |
| Color | White |
| Odor | acid taste |
| Form | powder |
| Water Solubility | 5 g/L (25 ºC) |
| Refractive Index | 1.4540 (estimate) |
| pH | 2.5-3.5 (4g/l, H2O, 20℃) |
| Log P | -0.67 |
Trade & Regulatory
| HS Code | 29224995 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Other Names
L-Aspartic acid(2S)-2-aminobutanedioic acidAspH-ASP-OHH-L-ASP-OH
Related Products
Raw Materials
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